交直流系统负荷裕度的快速算法  

Fast Algorithm of Loading Margin for AC/DC Power Systems

作　　者：肖玲[1] 李华强[1] 唐国栋[1] 邸弢 

机构地区：[1]四川大学电气信息学院,成都610065 [2]四川省超高压运行检修公司成都中心,成都610021

出　　处：《电力系统及其自动化学报》2010年第5期71-75,共5页Proceedings of the CSU-EPSA

基　　金：教育部留学回国人员科研启动基金

摘　　要：高压直流输电的出现给电压稳定研究带来了新的发展前景,在线电压稳定性评估是其中一个重要的研究方向。针对传统方法仅适用于交流系统的电压稳定评估,提出了一种基于线性灵敏度方法的交直流系统求解负荷裕度的快速算法。在典型的直流控制方式下,通过求解交直流系统的负荷裕度,并结合线性灵敏度方法对N-1故障进行过滤和排序。同时阐述了新方法的应用背景和实现原理,并对IEEE30及IEEE57节点系统进行仿真分析,仿真结果验证了该方法的有效性和准确性。The emergence of high voltage DC transmission（HVDC） brings new developing prospects for the study of voltage stability,in which the on-line voltage stability assessment is one of the most important research fields.As the traditional assessment method is merely suitable for the AC power system,a new fast algorithm to obtain the loading margin of AC/DC power system based on linear sensitivity principle is proposed in this paper.Upon the condition of a typical DC control mode,this paper presents linear sensitivity principle to screen and rank N-1contingency after obtaining the loading margin of AC/DC power system.The new method is proposed including its application background and implementation principle and has been applied to the IEEE 30-bus and IEEE 57-bus test systems with the results characterized by more accuracy and validity.

关 键 词：交直流系统 事故筛选与排序 负荷裕度 内点法 线性灵敏度 

分 类 号：TM744[电气工程—电力系统及自动化]